Auxiliary drive for flat hosiery frames



July 19, 1932.

P. LIEBERKNECHT AUXILIARY DRIVE FOR FLAT HOSIERY FR AMES Filed Sept. 19,1931 awmz r:

Patented July 19, 1932 UNITED STATES. PATENT oFFicE PAUL LIEBEBKNZECHT,or EmsmnnL-cmm'rz, GERMANY, .assrenon or om-mm? roMASGHINENFABRIK-EINSIEDEL, GESELLSGHAFT MIT imscnnmxrnn m'rtme,

OF EINSIEDEL, NEAR CHEMNITZ, GERMANY AUXILIARY DRIVE FOR FLAT HOSIEBYFRAMES Application filed September 19, 1931, Serial No. 563,774, and inGermany October 8, 1980.

I The present invention relates to an auxil-- iary drive for flathosiery frames.

. Flat hosiery frames, and particularly cotton machines, are, inaddition to being equipped with a mechanical drive, provided with adevice which enables the operator to move the machine by hand. Thisdevice consists, as a rule, of a shaft arranged in front of and alongthe machine and fitted with hand wheels for actuatingthe machine partsmoved by a motor or other driving means through the medium of a pair ofcog-wheels. Such a device for moving the machine by hand after stoppingthe mechanical drive is required, for instance, in order to effectcorrect adjustment during the insertion of the bar, and experience hasshown that long frames, such as 28 gauge cotton machine and the like,can be moved by hand only with great difficulty and that the exertioninvolved 1s injurious particularly to youthful and female operators whoare not unusually strong physically.

In order to overcome these drawbacks, the invention provides flathosiery frames with a geared transmission mechanism adapted to actdirectly or indirectly on the machine parts chiefly to be moved, so thatthese parts may be controlled from this point at the expenditure of verylittle power. The type of gear and the manner of arrangin it arevariable within very wide limits, though it is preferred to connect thegear with the hand wheel shaft and to employ a worm gear to attain ahigh ratio of gearing. The new auxiliary driving device is connectedalso with a device for stopping the drivin mechanism during theoperation of the mac ine.

This ear is further connected with a device which, if the gear is moved,prevents the rod controlling the engagement of the 1 machine from movingand, after stopping of the ar, permits the disengagement of the mac 'ne.

" Byway of example, one embodiment of the.

invention is illustrated in the accompanying drawing, in which Figure 11s a front view of a cotton machine with the wormear lmthmwnrin,according to the invention; .ig,

2, a fi'ont view of the driving parts in corre-' sponding position; Fig.3, a view of the driv protective casing c which atd is provided,

with an oscillatory movable casing e serving as hearing for the worm fand, indisengaged condition, (Fig. 3 striking the stop 9 of the casing 0whereby urthermotion of the worm f is prevented. With the worm shaft fa.

crank it is connected, and the movable casing e has a flange 11 providedwith the rotatable hook Zc.

When the machine runs heavily and the shaft a is to be turned by hand,the worm shaft f is lifted so that its worm f meshes with the worm wheelI), whereupon the shaft a can be turned easily by means'of the crank71.. During the lifting of the worm shaft f the hook it, owing to theaction of the spring 1%, has placed itself around the pin n 'secured tothe protective casing a and thus holds the worm f in working posltion.By releasing the hook k from the pin n the oscillatory parts 0, f, f maybe lowered to bring the worm f out of engagement with the worm wheel 6.

However, the worm shaft f can be moved motor "u or another mechanicaldriving me dium.

r The bush flanges i are provided with a cast-on finger 0, carrying arod 3), the free end of which forms the fork g. en the bush e is lifted,the fork 9 slides with its full width within the range of motion of therod 1- controlling the engagement and disengagement of the mechanicalmotion of the machine, so thatthe adjusting ring e disposed on the. rod1' is directly in front of the fork g. This. adjusting ring 8 and theangle or fork '9' prevent, therefore, motion of the rod? to the right,i. e., the engagement of the machine, while the possibility of motionthe worm' is disconnected, the fork 9 will release the rod r.

I claim 1. An auxiliary drive for flat hosiery machines, comprising adriving shaft a worm wheel secured to the said driving shaft, and a wormadapted to disengageably mesh with the said worm wheel.

2. An auxiliary drive for flat hosiery 10 frames, comprising a drivinshaft, a worm wheel secured tothe said riving shaft, a worm adapted todisengageably mesh with the said worm wheel, an oscillatory casingadapted to act as bearing for the said worm,

l5 and means connected'with the said casing for limiting the motion ofthe said worm in disengaged position and for temporarily holding thesaid worm during the period of engagement. v

2 3. In an auxiliary drive according to claim 1, means for causing theengagement of the machine and a device comprising a fork and two rodsadapted to control the engagement and disengagement of the machine.

4. In an auxiliary drive according to claim 1, a disengageable member, abearin carrying the said member, a rod arrange on the said bearing, adisengaging bar for the me-- chanical machine drive, and means carriedby the said rod and adapted to slide within the range of motion of thesaid bar when the said disengageable member is engaged to prevent saidbar from carrying out an engaging movement. V

In testimony whereof I have aflixed my signature.

PAUL LIEBERKNECHT.

